class Kitchen
{
private:
double kit_sq_ft;
public:
Kitchen() {kit_sq_ft = 0.0; }
virtual double area() const { return kit_sq_ft * kit_sq_ft; }
};
class House : public Kitchen
{
private:
double all_sq_ft;
public:
House() {all_sq_ft += kit_sq_ft;}
double area(const char *s) const { cout << s; return all_sq_ft; }
};
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